Harrow draft gear



T. E. MARSHALL.-

HARROW DRAFT GEAR. APPLICATION HLED MAR 17,1919.

Patented Nov. 7, 192.2.

3 sums-sum 1.

T. E. MARSHALL.

HARROW DRAFT GEAR. APPLICATION FILED MAR. 17:1919.

1 435,975 Patented Nov. 7, 1922.

3 SHEETSSHEET 2.

T. E. MARSHALLJ HARROW DRAFT GEAR.

APPLICATION FILED MAR. 17,1919.

1,435,075, Patented Nov. 7, 1922.

3 SHEETS-SHEET a.

roads.

Patented Nov. 'Y, 12922.

-" sa P a was "we THQIMAS E. 'VTARQ'FFA iii.

Application filed March 17, 1519. Serial No. 283,217.

To all whom-zit may concern: I

'Be it known that Trioims E. lllansHALL,

a citizen of the United States of i'imerica.

simple. unique and effective device for use in conjunction with the usual toothed ha-rrow, whereby the latter may be employed in gangs for the effective cultivation. of a comparatively large area of ground in one op eration of moving the harrow over the ground. To this end the invention comprises a tubular axle member with detachable end extension the axle member and ertension being designed to have toothed harrows attached to them. An operators or drivers seat is carried by the axle as well as a tongue and the necessary whilile'trees to permit the axle being hitched to draft animals and to permit the person operating the harrows to be carried by the apparatus. The extension sections are designed to be detached from the axle member and connected with it in such a way as to provide skids on which the harrows or harrow sections may be mounted. to permit the harrows or harrow sections to be carried from one field to another without performing any cultivating operation upon the ground. .037 this means the normal width of the apparatus as a whole is materially reduced so that it can be driven through gates and unobstructed I along the usual width of As illustrated and described, a specific embodiment of the invention is adhered to, but to this embodiment is not to be restricted. The right is reserved to make such changes or alterations as the actual reduction to practice may suggest, in so far as such changes or alterations are compatible in spirit with the annexed claims.

The same numerals of reference designate the same parts through the several figures of drawings, wherein:

Figure 1 is a top plan view of the invention.

Figure 2 is a perspective view of the draft gear per se, showing the extension sections of the axle member being used. as skids. This figure illustrates in dotted lines the normal position of the axle sections and tension sections illustrates also how the harrow sections are .rried for transportation from one place to the other. v

Figure 3 is a side elevational view of the rear per sc, the wheel on the side fa r observer being removed.

igure is a detailed longitul'linal sec showing the manner of attaching sections to the main ax e sec- 1 are dis a detailed longitudinal secional view'through a portion of the tongue -nwing the latter as a receptacle for the cross rail used in connection with the skids when the saidcross rail is so used.

Referring to the dra wings, the invention is shown as a draft gear for a plurality of toothed harrows 1 of the conventional style and provided with the conventional means 2 by which the inclination of the teeth 3 of the harrows be changed. The draft gear itself comprisesan axle section lof tubular construction and adapted to receive in its opposite ends the extension sections 5, the latter being adjustable to vary the length of the main axle and thereby increase the width of the draft gear as a whole so as to accommodate the desired number of harrows 1,, or to adjust the apparatus for different widths of harrows. The'ei-ztensio'n sections 5 are secured in adjusted position by set screws 6 threaded through the main axle and bearing upon the extension sections. lVhen the screws 6 are set the errare obviously held rigid but when the said screws are loosenec the said sections may be adjusted in or out of the main axle section 4.

The axle section 4t carries adjacent each nd ground wheel 8, these two wheels be- 'ng rotatablv mounted upon the axle and sewed in place thereon between collars 9 which are adjustable along the axle to position the wheels nearer to or farther away from the ends of the axle i as desired. Chains 1O connect with the axle i on each side of the wheels 8 and each pair of these chains connects with a whiifle tree 11, to permit the draft gear being hitched to draft animals.

Mounted upon the axle section 4- at an intermediate point in the length'of the latter there is an open frame 12. this flame carrying a narrow but relatively long platform 13 and further carrying the tongue leiwhich is pivotally connected to the frame as indicated at 15, the rear end of the tongue extending close to the axle 4; to project underneath the platform 13 against which this rear end of the tongue abuts to aid in supporting the outer end of the tongue. The provision of pivotal means for mounting the tongues makes for the easy turning of the apparatus by permitting the tongue to swing laterally to one side or the other.

The tongue 14: is of tubular shape and when the draft gear is in use this tongue carries a tubular member 16 the purpose of which appears hereinafter.

The rear end. of the open frame 12 is extended upwardly to provide a seat supporting section 17 on which there is carried a seat 18 secured to this seat supporting section by the bolts 19. the eat supporting sec tion 17 being provided. with a plurality of holes 20 through any adjacent two of which the bolts 19 may be passed to position the seat forwardly or rearwardly on the seatsupporting section 17, obviously to provide for the weight of the operator counterbalancing the weight ofthe tongue. The lighter the operator the farther back on the seat supporting section is the seat placed.

in the use of the improved draft gear, the extension. sections 5 are attached in the ends of the main axle, as shown in Figure 1, and the harrows or harrow sections 1 are con-' nected with the main axle and with the extension sections by chains as indicated at 21. The draft animals are hitched to the whillle trees 11, and the Weight of the forward end of the tongue is counterbalanced by the weight of the operator sitting upon the seat 18. The apparatus may thus be driven over the ground to be cultivated and undue weight is kept off of the draft animals by the counterbalancing feature provided by the seat. lVhenit becomes necessary to turn the whole apparatus the tongue swings readily to one side or the other in the direction to which the turn made, and the whifiie trees being connected with the axle, as they are, are kept free of engagement with any part of the apparatus when the turn is being made.

In the event that it is desired to transport the apparatus to a new field and to prevent the operation of the harrows during such transportation, the whole apparatus is materially condensed in size. The extension sections 5 are detached from the axle sections a, and are connected to the axle section f so as to perform the function of the skids, one end of each extension section being clamped to the axle section as indicated at 22. The tubular member 16 is withdrawn from the tongue let and mounted transversely across these skids to which it is secured by the clamping members 23. The center harrow sections 1 are then placed on the skids on top of this transverse tubular member 16 and the mtermost sections which were previously drawn by the extension sections 5 are superimposed. on top of the center sections when the apparatus is condensed to a width not exceeding the length of the main axle section The apparatus is then ready for transportation. to a new field of operation and the barrow teeth are held out of engagement with. the ground during such transportation.

The invention having been described, what is claimed as new and useful is:

- 1. In an apparatus of the kind set forth, the combination with a plurality of harrow sections, of a main tubular axle, a co1n bined seat and pole support. disposed on said main axle at an intermediate point, wheels mounted on said main axle, and extension axle sections detachably engaged with the extremities of the main axle, the harrow sections being attached respectively to the main axle and to the extension sections. v

2. In an apparatus of the kind set forth, the combination with a plurality of harrow sections, of a main tubular axle, a combined seat and pole support disposed 011 said main axle at an. intermediate point, wheelsmounted on the main axle and adjustable longitudinally of the latter, and extension axle sections detachably engaged with the extremities of the main axle, the harrow sections being attached respectively to the main axle andto the extension sections.

In testimony whereof nature.

THOMAS E. MARSHALL.

he affixes his sig- 

